Sole and sole fitting



June 8, 1937.

J. CALLEO SOLE AND sous: FITTING Filed Feb. 25, 1936 M/E/VTU/L PatentedJune 8, 1937 UNiTE STATES PATENT OFFICE SOLE AND SOLE FITTINGApplication February 25, 1936, Serial No. 65,629

6 Claims.

This invention relates to soles and sole fitting, and is hereinillustrated and described with reference to insoles and to a method ofand a niachine for operating upon insoles.

Insoles are commonly provided with an outer lip formed by an edge outand an inner lip formed by a face cut in the sole. These lips extendforwardly from about the breast line of the sole and are separated fromeach other by a relatively small width of uncut sole material,

known as the between substance. The lips are subsequently turned up andsecured to each other back to back to form a rib. This operation isperformed by a lip-setting machine which, for example, may be of thetype disclosed in United States Letters Patent No. 1,213,770, grantedJanuary 23, 1917 upon an application of Albert E. Johnson.

Ordinarily, a transverse incision or scoring line adjacent to eachmargin of the sole is formed before the sole is channeled. Theseincisions indicate to the operator of the channeling machine thelocality at which the channeling out should terminate and they alsoprovide a definite rearward limit to the upstanding rib formed by thelip-setting machine above mentioned. In practice the operator usuallyfinds it difiicult or impossible to stop the channeling cuts exactly atthese transverse incisions and in consequence the channeling cuts arecarried somewhat rearwardly of the incisions. It sometimes happens thatin the operation of the lipsetting machine such rearward extensions ofthe lips will be picked up and cemented together to form an undesiredextension of the rib. When the shoe is lasted with a portion of the ribextending rearwardly of the scoring line such rearwardly extendingportion of the rib will be covered by the counter and will create anundesired bunching beneath the counter.

In order to avoid the difiiculty above pointed out the present inventioncomprises a method which consists in making in an insole an incision ofsuch a character that when the channeling cuts are made an end portionof one ofthe channel lips will be removed to avoid any danger of settingthe lips at that locality. In carrying out the method, a novel productis produced, namely an insole having an incisionof the character abovereferred to. In the illustrated sole the incision is T-shaped with thebar of the T extending transversely of the sole in the vicinity of theheel breast line and with the stem of the T extending rearwardly of thebar to cut through material which is to constitute the root of a channellip subsequently to be formed on the insole.

The invention also comprises a machine for carrying out theabove-mentioned method and for forming the above-described product. 5

Referring now to the accompanying drawing, Fig. 1 is a view inperspective illustrating the step of forming incisions in the lips of aninsole by a machine;

Fig. 2 is a view in perspective of a knife shown 10 in Fig. 1; and

Fig. 3 is a plan view of the heel end of an insole in process of beingchanneled and illustrating the combined effect of the above-mentionedincisions and of the channeling cuts. 1;

Fig. 1 illustrates the operating instrumentalities of a machine forforming the above-mentioned incisions. This machine consists of a frame12 having a raised portion 14 which serves as a work support. The heelportion. of a. sole 20 S is centered upon thework table l4 by a pair ofgages 16 which may be controlled by mechanism similar to that disclosedin United States Letters Patent No. 1,113,544, granted October 13, 1914upon an application of Miller Cook, Jr. 25 As disclosed in that patent,the centering gages are mounted for transverse movement with respect tothe-center line of the machine, being connected by gearing in suchmanner as toinsure that both gages are always at an equal 30 distancefrom the center line and being urged toward the center line by a spring.For a more complete understanding of the mechanism for centering thegages 16, reference may be had to the above-mentioned Letters Patent No.1,113,544.

Adjustably mounted on the work table 14 is a gage 18 for positioning therear end of the sole.

A bridge member 20 serves to hold the sole down against any tendency ofthe gages 16 to raise it. 40 The machine is provided with a pair ofknives 22 each having a cutting edge which is T-shaped, the bar of the Tbeing indicated by the reference character 24 and thestem by thereference character 26. The knives 22 may con- 45 veniently be mountedand operated in the same manner as the knives disclosed in theabovementioned Letters Patent No. 1,113,544.

adjustment of the gage l8. The knives may be lowered and raisedcontinuously, or, if desired, the machine may be provided with amechanism for stopping it automatically after each cycle of movement ofthe knives.

Referring to Fig. 3, it will be noted that each of the knives 22 willmake a scoring cut in the sole S in the form of a T-shaped incisionadjacent to each of the lateral margins of the heel portion of the soleS. The bar portion of each of the T-shaped incisions is indicated by thereference character 28 and the stem portion by the reference character3! It will be noted that in the illustrated machine the knives are soarranged that the two cuts 28 will be colinear and that the cuts 30extend rearwardly from and at right angles to the respective cuts 28.The cuts 28 are made approximately at the heel breast line and aresimilar to the cuts made by the machine disclosed in Letters Patent No.1,113,544 above mentioned. Each of the cuts 30 is so positioned assubstantially to coincide with the root of one of the channel lipssubsequently to be formed, and it is long enough to extend at least tothe point at which the channel will emerge from the sole. Theillustrated machine is arranged to make the cut 30 in the root of theouter lip. The cuts 28 extend across both lips and also across thebetween substance, and are of sufficient depth to extend through thelips.

Further referring to Fig. 3, a pair of channeling .knives 32 and 34,respectively, are observed in the process of forming on the sole S aninner lip I and an outer lip O. The between substance, indicated by thereference character B, is defined by a pair of parallel dotted lines.The line at which the outer channeling knife 3 enters the sole to formthe outer lip is indicated by the reference character 36. As a result ofthe incision and of the channeling operation, and regardless of theorder in which these operations are performed, a portion of the outerlip bounded by the cuts 28, 30, the line 36, and the edge of the lipwill be removed so that it will be impossible for the lip-settingmachine accidentally to cement the lips I and together rearwardly of thecuts 28.

As above pointed out, each of the cuts 38 is so positioned assubstantially to coincide with the root of the outer channel lip, thesole being gaged laterally in relation to the knives by the gages i6.Variations of width and of style in the soles call for correspondingvariations in the positions of the cuts 35. While it would be a simplematter to provide for lateral adjustment of the knives 22 in the machineillustrated in Fig. 1, it has been found more convenient, in practice,to provide a series of knives in which the lateral position of thecutting edge 2E varies in relation to the shank of the knife. For allordinary styles of soles, it has proved satisfactory to make the cuttingedge 26 at a right angle to the cutting edge 2%; in designing the knife,however, this angle may be varied if unusual conditions should sorequire.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

1. That improvement in methods of fitting insoles which consists inmaking in an insole a channeling out which emerges from the insole toleave an end of the channel lip disconnected from the body of theinsole, and in removing an end portion of the channel lip by making ascoring cut to incise the lip along a line extending inwardly from theedge of the lip and thence along the root of the lip to the disconnectedend of the lip.

2. That improvement in methods of fitting insoles which consists inmaking a scoring cut to form an incision in an insole, and in forming achannel in the insole, said incision including a cut substantiallycoincident with the root of the channel and extending to the end of thechannel and a cut extending across the channel lip and intersecting thefirst-mentioned cut at a locality spaced from the end of the channel,both of said cuts extending through the channel lip, the channel beingformed by a cut which emerges from the insole at the end of the channel.

3. That improvement in methods of fitting insoles which consists inmaking a T-shaped incision in the insole, and informing a channel in theinsole by a out which emerges from the insole, thereby leaving an end ofthe channel lip disconnected from the body of the insole, the stem ofthe T which represents the shape of the incision being substantiallycoincident with the root of the channel lip and extending to thedetached end of the lip, and a portion of the bar of the T extendingacross the lip at a locality spaced from the disconnected end of thelip, said incision extending through the thickness of the lip to detacha portion of the lip.

4. That improvement in methods of fitting insoles which consists infirst making a T-shaped incision in the insole, then cutting twochannels in the insole, and cementing together in upstanding positionthe two channel lips, at least one of said channels being formed by aout which emerges from the surface of the insole rearwardly of the barof the T which represents the shape of the incision, the emergence ofsaid out leaving the end of the channel lip disconnected from the bodyof the insole, the stem of the T extending to said disconnected end ofthe channel lip and being positioned to cut through the material whichis to form the root of the lip, and the bar of the T cutting across andthrough the material which is to form both lips and thebetweensubstance, with the result that the portion of one of the lipsrearwardly of the bar of the T will be out out prior to the cementing,rendering impossible the accidental cementing together of the two lipsrearwardly of the bar of the T.

5. An insole having a T-shaped incision in its margin, with the bar ofthe T extending transversely of the sole in the vicinity of the heelbreast line and with the stem of the T extending rear- Wardly of the barto cut through material which is to constitute the root of a channel lipsubsequently to be formed on the insole.

6. A double-lipped insole having two T-shaped incisions, the bars of theTs being in alinement with each other and extending across the pair oflips and the between-substance adjacent to the margins of the sole inthe vicinity of the heel breast line, and the stem of each T cuttingthrough the root of one of the lips, a portion of the channel liprearwardly of each of the cuts represented by the bars of the Ts beingout out by the incision and the cut forming the channel.

JOSEPH CALLED.

